InChI=1/C16H16N4O/c21-16-12-4-2-1-3-11(12)15-13(18-16)5-6-14(19-15)20-9-7-17-8-10-20/h1-6,17H,7-10H2,(H,18,21)/p+1/fC16H17N4O/h17-18H/q+1 F14859573209753F